linux-kernel - Re: [PATCH] xfs: #define out unused parameters of?xfs_bmap_add_free and xfs_btree_read

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Date:	Tue, 22 Apr 2008 21:28:30 +0300
From:	Adrian Bunk <bunk@...nel.org>
To:	Denys Vlasenko <vda.linux@...glemail.com>
Cc:	Eric Sandeen <sandeen@...deen.net>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] xfs: #define out unused parameters
	of?xfs_bmap_add_free and xfs_btree_read_bufl

On Tue, Apr 22, 2008 at 07:50:54PM +0200, Denys Vlasenko wrote:
> On Tuesday 22 April 2008 19:26, Eric Sandeen wrote:
> > >> I want to eventually reach the state with no warnings
> > >> about unused parameters.
> > > 
> > > The standard kernel pattern in using empty static inline functions (that 
> > > allow type checking).
> > > 
> > > And I'm not sure whether the number of functions you'd have to change 
> > > for reaching your goal has four, five or six digits.
> > 
> > It would be a huge undertaking.
> > 
> > Just building xfs w/ the warning in place exposes tons of unused
> > parameter warnings from outside xfs as well.
> 
> Eh... I meant "no warnings about unused parameters" for fs/xfs/* only,
> not for the entire kernel. I filter out other warnings.
> 
> I want to do it not as an excercise in perfectionism,
> but as means of making sure we do not waste stack
> passing useless parameters, which is important for xfs.

That's not really maintainable, and the stack gains are too small for 
bringing us significantely nearer to a solution.

> vda

cu
Adrian

-- 

       "Is there not promise of rain?" Ling Tan asked suddenly out
        of the darkness. There had been need of rain for many days.
       "Only a promise," Lao Er said.
                                       Pearl S. Buck - Dragon Seed

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